For one approach to problems such as this, see Multiple-Concept Example 3. Sound emerges through a doorway,

Question:

For one approach to problems such as this, see Multiple-Concept Example 3. Sound emerges through a doorway, as in Figure 17.10. The width of the doorway is 77 cm, and the speed of sound is 343 m/s. Find the diffraction angle u when the frequency of the sound is

Figure 17.10:

Room Vibrating air molecule located in the doorway